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MEDIUM · 5.3

CVE-2023-36851

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system int...

Vulnerability Description

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to webauth_operation.php that doesn't require authentication, an attacker is able to upload and download arbitrary files via J-Web, leading to a loss of integrity or confidentiality, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * 21.2 versions prior to 21.2R3-S8; * 21.4 versions prior to 21.4R3-S6; * 22.1 versions prior to 22.1R3-S5; * 22.2 versions prior to 22.2R3-S3; * 22.3 versions prior to 22.3R3-S2; * 22.4 versions prior to 22,4R2-S2, 22.4R3; * 23.2 versions prior to 23.2R1-S2, 23.2R2.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
JuniperJunos21.2
JuniperEx2200-
JuniperEx2200-C-
JuniperEx2200-Vc-
JuniperEx2300-
JuniperEx2300-24Mp-
JuniperEx2300-24P-
JuniperEx2300-24T-
JuniperEx2300-48Mp-
JuniperEx2300-48P-
JuniperEx2300-48T-
JuniperEx2300-C-
JuniperEx2300M-
JuniperEx3200-
JuniperEx3300-
JuniperEx3300-Vc-
JuniperEx3400-
JuniperEx4200-
JuniperEx4200-Vc-
JuniperEx4300-

Related Weaknesses (CWE)

CWE-306

References

FAQ

What is CVE-2023-36851?

CVE-2023-36851 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system int...

How severe is CVE-2023-36851?

CVE-2023-36851 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-36851?

Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Ex2200, Juniper Ex2200-C, Juniper Ex2200-Vc, Juniper Ex2300.